/*
 * Copyright 2009 Red Hat, Inc.
 *
 * Red Hat licenses this file to you under the Apache License, version 2.0
 * (the "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at:
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package com.codefollower.douyu.http;

import java.io.Serializable;
import java.util.Comparator;

/**
 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
 * @author Andy Taylor (andy.taylor@jboss.org)
 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
 * @version $Rev$, $Date$
 */
final class CaseIgnoringComparator implements Comparator<String>, Serializable {

    private static final long serialVersionUID = 4582133183775373862L;

    static final CaseIgnoringComparator INSTANCE = new CaseIgnoringComparator();

    private CaseIgnoringComparator() {
        super();
    }

    @Override
    public int compare(String o1, String o2) {
        return o1.compareToIgnoreCase(o2);
    }

    private Object readResolve() {
        return INSTANCE;
    }
}
